A couple comments if you'll indulge me please.
1. The kits are still listed on the web page. In both .81 and 1.10 width.
2. All base kits are four pot calipers, there are not two pot versions.
3. Cost is still the same about three years running. If $1300 is too costly you need to get out more...
4. This "high price" also includes the full two piece rotor set up not found on other kits for 2/3 the cost so go figure that into the lower options also.
5. RARA covers it well in that any hybrid PBR conversion to this car is pretty much a Baer clone. Save your time and hassle and just buy the Baer and get on with it. Why re invent the wheel?
6. I'll disagree with RARA to an extent on the value of booted vs non booted calipers. Many a booted caliper will vaporize on the track and you'll be left with crispy flakes of old rubber boot melted to the piston resulting in potentially more work and expense to repair them. Stainless steel pistons offer both better heat rejection and without the boots are easier to clean before retraction. With literally hundreds of non booted calipers in service for over 14yrs few real issue have arisen from this. As he says however there's no substitute for proper maintenance and yes there's a life span here to consider. An FSL four pot could be considered used up after a few years of track service. But both replaced for about $350.
7. With regard to caliper options both FSL4 or BSL6 and how they are used remember that on this car like many, there is only so much room to work with. Thus fitting a larger, perhaps more durable, hard core racing caliper to this vehicle would require fitting massive wheel spacers. One has to balance the needs vs the 'what works' here. The FSL is, to me, the more serious track caliper over the BSL6 and certainly the 6n. Given it's full size pad, forged body and lower replacement cost it's the easy winner. If cost is no real object and true hard core track use is the objective we need to move from the production kits to more dedicated parts such as 1.25 or 1.375 rotors and larger W6a or STR type product. All of which are significantly more costly items for this level of vehicle.
In the end it comes down to balancing budget, use, space, options and in short; value. And today for $1300 I don't think you'd do any better.
